Tube frame for axminster looms



Nov. 1, 1938. o. v. PAYNE TUBE FRAME FOR AXMINSTER LOOMS Filed Dec. 20, 1957 inventor Oscar \I. Payne 5.4;, in M;

Attorney Patented Nev. 1, 1938 em E,

TUBE E. 191i xams-1 R moms. Oscar V.Payne, Leicester; Mass., assignor to -"Crornpton &Knowles Loom W0rks,- Worcester,

Mass a corporation of Massachusetts Ma i e- D a ers? 2 3 eerie! N9- "59:?9

5 Clainisli (Cl. 135-10;

" on the tubeframe is increased. One of the objects of the present invention is to permit the use of a stronger and larger tube frame carry ing an increased amount of tuft yarn and supported by "ears and hooks which are much stronger than those heretofore used. .This reverse of the tube frame carrier bar.

sult 'I achieve by locating the hook' entirely. at one side of the ear so that the latter is not perforated. a f

Heretofore I have proposed a slidinghookhavmg a'rec'tangular' support received'by the tubular carrier bar of the tuh frameInIthe"present invention I simplify this c:orj structionby using a cylindricalstiid sliding in bearing en'dwise of the tube frame and holdth e hooli' in"p'rop'r align ment for engagement with the chain by aguide pin or the'li ke extending through the ear. The guide pin is spaced tram the axis of the cylin dri'ca'l stud and therefore prevents turning of, the hooli about its stud and bearingsin a plane trans- It is desirable to be able manually todisconnect the tube frame from its chain and this can be accomplished very sir nply by depressing thlg iidepin which extends through and beyond the outersurface "of the ear. By pushing the guide pin which is rigid with'the hook'the latter'is moved inwardly away from the chain to permit detachment of the tube'fframe. It is a iurther objector my invention to secure a. hollow blockto the bottom of the ear and insert the block into the hollow bar,'after which the block is'fastenedto the bar.

h h e n other Ob t inv w which will appear as the description aro c'eeds, nvinvention resides inthe combination and arrange} nient of parts hereinaftendescrihed' and "set In 7 a com n n ra e n a venient' embodiment of my invention is set forth, 1 is a vertical longitudinal section through a tube frarne and clutchrnade according to my present invention, parts of the structure being ho njd afi On r 2 i an enc ie er ti n taken in h d tion of. arrow. 2, Fig. 1, the clutch being omitted. Fig33 "is a horizontal section' on line'3-3 of Fig. 2" ig; 4 is a transverse vertical sectionon line 4 -4 of Fig. 3 and' Fig. 5 is a perspective view showing the tube irarne bracket detached from the carrier bar. "The tubefrarhe set forth herein is designed for use in an Axminster loomfoif'the type'well known in the industry and only such parts there of as afiect'the manipulationofthe tube frarne will be set forth."'The1oorn will have at each end thereof a transporting chain lfl having outer and iriner links H "and [2, respectively, and also. a transfer clutch 13 supported on an arm M by means of a gudgeon 1 5; The clutch is manipulated '1' to efiect wiping-iiiw motions when the"tube frarne is in cloth forming position by a link It pivotally connected to the clutch as at IT. The chain will move by a step. bystep motion l und rs oo an com drst'n riqd e y to perrnit' the selected tube frame 1 to he' disconnected 'therefromfmoved toward the clutch, and etur ed to h i h fif 3 I nvention relates more particularly to the tube ira neand cornprises'a metallictubular bar lfprei rebly" or e ectanc s ct d ha v n at a hed t er t 'j y rali i y t tubes g V Onthe upper side of'the bar is a spool S on which will be wound the variously coloredtuitfyar ns'. The bearing may beheld to the tube frame in "any approved manner.

Projecting into the end or the'tube is a hollow sheetn'i'etal block "havin'g parallel vertical side walls 26 and 21', "respectively;connected together at their inner ends by an end wall 28, and bridged by a bearing block"29. .The latter may besecured to the "walls 26 and 21 by means of. screws 30 or in any other'a'pproved" manner. The block 29 is provided with"a"bearing 31 of cylindrical form in alignmentwith a second bearing 32 lo-' cated in the endZBJ" The bearings'3l and 32 are ohthe same 'axisfwhi'ch" is substantially parallel tothe'flaxis of the bar 20. j Amer 35' 'is notched'as at' 36 to receive the outer reduced ends 34 of the "walls 26 and 21 to'which the ear may'be'secured' as bywelding. The car has "an opening "'31 aligning with the bearing 3| "and said ear'extendsupwardly and may be slightly ofl 'set as at 38 to'provide a tongue Q'Q'To'r insertion between "the links H and I2 of the transporting chain. The ear is rigid with respecttdthe'block' 25 and the latter is held to the tube irame bar as by a screw ltl and also by screws 4| which pass through the bar I and walls 26 and 27 to be threaded into the solid block 29. In this way the hollow block 25 and the ear 35 are secured tightly to the carrier bar 20.

A hook 45 is so disposed as to lie entirely on one side of the ear, being located as shown in Fig. 1 between the spool and the ear. The hook has an upper bent end 46 to lie over the link l2 and has the lower end thereof riveted or otherwise fastened to a slide gudgeon or stud 4'! having a large part 48 received by and sliding in the bearing 3|. A reduced part 49 of the stud 41 extends inwardly and slides in the bearings 32, being surrounded by a compression spring 50 located between the end wall 28 and the enlarged part 48. The purpose of the spring is to hold the hook normally in the position shown in Fig. 1 with the lower vertical part 5| of the hook extending along the corresponding adjacent part of the ear 35. The hook may be offset as indicated in Fig. 1 but preferably does not pass through any part of the ear.

The stud 47, being cylindrical, would be free to turn in its bearings 3i and32, and in order to prevent this I secure a guide pin 55 to the hook at a point below. the end 46. The guide pin passes through a hole 56 in the ear and 'is spaced sufficiently belowthe chain to permit the customary upward motion of the tube frame necessary to permit the hook end 46 to slide over the highest part of the chain link I2. When the tube frame is in an inverted position shoulders 60 of the car may be relied upon to engage the single links 6| of the chain to support the tube frame, but if desired, the pin 55 may engage the chain links I l and l2 for this purpose. I do not wish to be limited to this latter feature.

-The clutch I3 has extending inwardly therefrom a detaching pin 10 and has the underside thereof-provided with a-lip H curved downwardly and inwardly as at'l2 in the usual manner. Side plates 13 of the clutch require the tube frame to rock with the clutch.

In operation, the parts are normally in the position shown in Fig. 1 with the hook over the link l2 and the clutch spaced from the tube frame. When the latter is to be removed from the chain the clutch is movedinwardly or toward the tube frame the'first effect of which is to lift the latter slightly by reasonof the'inclined lip 12, after which thepin M will extend through the opening 31 and engage the hooklunit. The latter is thereupon moved inwardly or to the left as viewed in Fig. 1 against the action of.

spring 56 a sufiicient distance to move the end 46 of the hook out of vertical alignment with any part of the chain. The tube frame may then be lowered in the usual manner, after which it will be returned to the chain to cause entry of tongue 39 between links II and 12, after which the clutch moves away from the tube frame and the spring 50 restores the hook 45 to its normal holding position relatively to the chain. The loom is then ready for a repeated operation with the same tube frame or a dif: ferent tube frame. 7 r

During the motion of the hook relatively to the tube frame the guide pin 55 will remain in the hole .56 for all positions of the hook, thereby preventing substantial angular motion of the hook around the axis of stud 41 in a plane transverse of the carrier bar. In this way the hook is always required to return to the link 12 in proper position.

The top 15 of the carrier bar may be slotted as at 16 to permit the hook to move as described, the hook reaching the end of the slot while guide pin 55 is still in hole 56. The end of the carrier bar may be notched as at 11 and 18 to receive correspohding parts 19 and 80, respec-- tively, of the ear 35 which project beyond the walls 26 and 21.

Certain parts and relationships shown herein, such as the hook member 45 located entirely on one side of the ear 35. are not claimed specifically herein but are set forth and claimed in a copending application filed by Robertson Serial No. 180,727.

From the foregoing it will be seen that I have provided a tube frame construction wherein the ear 35 is durable and secured to the hollow block 25 which in turn is attached to the carrier bar. The ear is free from the wide slot heretofore found in similar constructions, being perforated only at 31 and 56. The hook may be wider than those heretofore used due to the fact that it is not required to pass through a slot in the ear and the hook is provided with a comparatively cheap but effective slide bearing. The guide pin 55serves to prevent angular displacement of the hook relatively'tothe ear and may also be conveniently pressed by an operator for the purpose of manually disconnecting the tube frame from the chain at any point in the length of the latter without relying upon the clutch pin 'Hl. Furthermore, the pin 55 may if desired be relied upon to support the tube frame. when the latter is in inverted position over the chain.

Having thus describedmy invention it will be seen that changes and 'modifications may be made therein by those skilled in the art without departing from'the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

means defining a cylindrical sliding bearing connectionbetween the hook and carrier bar, the axis of the cylindrical bearing being substantially parallel to the axis of the carrier bar, and a guide on one member passing through the other member at a point laterally spaced from the cylindrical bearing axis to prevent substantial angular motion of the hook member around the cylindrical bearing axis., a Q

2. In an Axminster tube frame, a hollow car rier bar, an ear fixed with respect to the end of the carrier bar and extending laterally therefrom, a supporting hook located entirely on that side of the ear which faces the longitudinal center of the carrier bar, means defining a sliding connection between the hook and the carrier bar, said sliding connection being circular in cross section, and means rigid with the hook and extending through the'ear at one side of said slide bearing and engagingthe ear to prevent substantial angular motion of the hook in a plane transverse of ,the axis of said slide bearing.

3. In an Axminster tube frame, a hollow carrier bar, an ear fixed to the bar and extending laterally therefrom, a supporting hook located entirelyon that side of the ear facing the longitudinal center of the tube frame, a cylindrical slide bearing connection betweenthe hook and carrier bar, and a guide member on the hook sublocated at one side of the axis of the latter to prevent substantial angular motion of the hook in a plane transverse to the cylindrical bearing axis, said guide member projecting normally through the ear to be accessible from the side of the ear opposite to the carrier bar.

4. In an Axminster tube frame, a hollow carrier bar, an ear fixed with respect to the end of the carrier bar and extending laterally therefrom, a supporting hooklocated entirely on that side of the ear which faces the longitudinal center of the carrier bar, means defining a sliding connection between the hook and the carrier bar, said sliding connection being circular in cross section, and a guide pin secured tothe hook and extending through the ear and projecting outwardly beyond that face of the ear which is remote from the longitudinal 'center of the carrier bar to be manually accessible to be moved in a direction toward the longitudinal center of the tube frame to move the hook away from the ear, said guide pin also engaging the ear to prevent substantial angular motion of the hook in a plane transverse of the axis of said sliding beartransporting chain, a tube frame, an ear fixed to the tube frame and extending laterally into engagement with the chain, a supporting hook movable in a direction away from the ear and. toward the longitudinal center of the tube frame, said hook lying entirely on that side of the ear which faces the longitudinal center of the tube frame, means defining a slide bearing between the hook and the tube frame, said slide bearing being circular in cross section, and a guide pin secured to the hook and extending through the ear at a point under but closely adjacent to the chain when the tube frame is below the chain, said guide pin engaging the ear to prevent substantial angular motion of the hook in a plane transverse of the axis of the slide bearing, said guide pin also projecting far enough beyond that face of the ear remote from the longitudinal center of the tube frame to be manually accessible for motion toward the center of the tube frame to release the hook from the chain, and said guide pin also placed to engage the chain when the tube frame is over said chain to assist in supporting the tube frame on the chain.

OSCAR V. PAYNE. 

